logo

For the Inventor, By the Inventor

Princeton, NJ, United States of America

Rajesh Ranjan

This inventor holds 15 USPTO granted patents and 5 published patent applications, primarily in Polymer Compositions. Top assignees: Church Dwight & Co., Inc., Certainteed Corporation, Verizon Patent and Licensing Inc.. Active years: 2016-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rajesh Ranjan. Retrieved from https://idiyas.com/inventor/rajesh-ranjan

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 4

Forward Citations = 38(Granted Patents)


Location History:

  • Princeton, NJ (US) (2016 - 2023)
  • Irvine, CA (US) (2023)

Company Filing History:

goldMedal6 out of 546 
 
Church Dwight & Co., Inc.
 patents
silverMedal5 out of 942 
 
Certainteed Corporation
 patents
bronzeMedal2 out of 6,867 
 
Verizon Patent and Licensing Inc.
 patents
4. 1 out of 12 
 
Church & Dwight Co., Inc.
 patents
where one patent can have more than one assignee

Years Active: 2016-2025

Loading Chart...
Areas of Expertise:
Polymer Compositions
Bio-Based Asphalt
Digital Ledger
Roofing Products
Thermal Energy Management
Fraudulent Website Activity
Separable Package
Multi-Chambered Package
Oxidized Mixture
Communication Protocols
Document Publishing
Verification Methods
15 patents (USPTO):Explore Patents
1. 12509572 - Polymer compositions and products formed therewith (2025-12-30),
2. 12415908 - Polymer compositions and products formed therewith (2025-09-16),
3. 12234648 - Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture (2025-02-25),
4. 11847173 - System and method of facilitating publishing and verification of digital documents on a distributed ledger (2023-12-19),
5. 11760867 - Polymer compositions and articles coated therewith (2023-09-19),
6. 11673733 - Separable package (2023-06-13),
7. 11598096 - Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture (2023-03-07),
8. 11472620 - Multi-chambered package (2022-10-18),
9. D949708 - Separable package (2022-04-26),
10. D941161 - Multi-chambered package (2022-01-18),
11. 10550574 - Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture (2020-02-04),
12. 10264089 - Rule configuration framework for communication protocols (2019-04-16),
13. 9544317 - Identification of potential fraudulent website activity (2017-01-10),
14. 9540544 - Oxidized mixture of bio-based material and asphalt, a bio-based asphaltic material, and methods of making the same (2017-01-10),
15. 9499986 - System, method and apparatus for thermal energy management in a roof (2016-11-22),

Title: Rajesh Ranjan: Innovator in Polymer Compositions and Bio-Based Asphalt

Introduction

Rajesh Ranjan is a prominent inventor based in Princeton, NJ (US), known for his significant contributions to the field of polymer compositions and roofing products. With a total of 15 patents to his name, Ranjan has made notable advancements that address both functionality and environmental concerns in product development.

Latest Patents

Among his latest patents, Ranjan has developed innovative elastomeric latex articles, including gloves and condoms, utilizing a styrene-polyisoprene-styrene (SIS) latex. These products are designed to exhibit desired tensile properties while being free from allergens such as sulfur and zinc oxide. Additionally, he has created a roofing product that incorporates a bio-based asphalt mixture. This method involves mixing a polyol with bio-source materials to form a bio-asphalt, which can be combined with petroleum-based asphalt to create a roofing-grade mixture. This innovation not only enhances the performance of roofing materials but also promotes the use of sustainable resources.

Career Highlights

Ranjan has worked with notable companies such as Church & Dwight Co., Inc. and CertainTeed Corporation, where he has applied his expertise in developing innovative products. His work has significantly impacted the industry, particularly in creating safer and more sustainable materials.

Collaborations

Throughout his career, Ranjan has collaborated with esteemed colleagues, including Gregory F. Jacobs and Keith C. Hong, contributing to a dynamic exchange of ideas and innovations.

Conclusion

Rajesh Ranjan's work exemplifies the intersection of innovation and sustainability in product development. His contributions to polymer compositions and bio-based materials continue to influence the industry positively.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…